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use crate::template::{Context, find, parse};
use std::fs::write;
use std::io::{Error, Result};
use std::path::Path;
const FILENAME: &str = "index.gph";
pub fn archive(
_: &Path,
template_directory: &Path,
target: &Path,
context: &Context,
) -> Result<()> {
if let Some(template) = find(template_directory, FILENAME) {
let parsed_template = parse(&template)
.ok_or_else(|| Error::other("Unable to parse Gopher Archive template"))?;
let rendered_template = parsed_template.render(context)?;
let location = target.join(FILENAME);
write(location, rendered_template)?;
}
Ok(())
}
#[cfg(test)]
mod tests {
use std::collections::HashMap;
use std::fs::create_dir_all;
use super::*;
use crate::template::Value;
use test_utilities::*;
#[test]
fn test_renders_the_context_into_the_template() {
let test_dir = setup_test_dir();
let template_dir = test_dir.join("template");
let output_dir = test_dir.join("output");
create_dir_all(&output_dir).expect("Could not create output test directory");
create_dir_all(&template_dir).expect("Could not create template test directory");
create_test_file(&template_dir.join("index.gph"), "Simple {{= test }}");
let context: Context =
HashMap::from([("test".to_string(), Value::String("things".to_string()))]);
archive(&test_dir, &template_dir, &output_dir, &context).expect("Archive failed");
assert_file_contents(&output_dir.join("index.gph"), "Simple things");
cleanup_test_dir(&test_dir);
}
#[test]
fn test_fails_if_template_is_malformed() {
let test_dir = setup_test_dir();
let template_dir = test_dir.join("template");
let output_dir = test_dir.join("output");
create_dir_all(&output_dir).expect("Could not create output test directory");
create_dir_all(&template_dir).expect("Could not create template test directory");
create_test_file(&template_dir.join("index.gph"), "Simple {{ test }}");
let context: Context =
HashMap::from([("test".to_string(), Value::String("things".to_string()))]);
let result = archive(&test_dir, &template_dir, &output_dir, &context);
assert!(result.is_err());
cleanup_test_dir(&test_dir);
}
#[test]
fn test_fails_if_output_folder_is_not_writable() {
let test_dir = setup_test_dir();
let template_dir = test_dir.join("template");
let output_dir = test_dir.join("gopherunwritable/folder/please");
create_dir_all(&template_dir).expect("Could not create template test directory");
create_test_file(&template_dir.join("index.gph"), "Simple {{= test }}");
let context: Context =
HashMap::from([("test".to_string(), Value::String("things".to_string()))]);
let result = archive(&test_dir, &template_dir, &output_dir, &context);
assert!(result.is_err());
cleanup_test_dir(&test_dir);
}
}
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